Vaporizer for hydrocarbon-engines.



1%: 776.406 PATENTED NOV. 29, 1904. E. P. LAMB.

VAPORIZER FOR HYDROCARBON ENGINES.

APPLICATION FILED NOV. 23, 1903.

N0 MODEL.

Z 1 nun,

NTTED STATES Patented November 29, 1904:.

PATENT FFICE.

ELDEN PEARL LAMB, OF RCCKLAND, MAINE, ASSIGNOR TO CAMDEN ANCHOR-ROCKLAND MACHINE COMPANY, OF ROCKLAND, MAINE.

VAPORIZER FOR HYDROCARBQN-ENGINES.

SPECIFICATION forming part of Letters Patent No. 776,406, dated November 29, 1904.

Application filed November 23, 1903. Serial No. 182.375. (No model.)

To all whom, it may concern:

Be it known that I, ELDEN PEARL LAMB, a citizen of the United States, residing at Rockland, Knox county, Maine, have invented certain new and useful Improvements in Vaporizers for l Iydrocarbon-Engines, of which the following is a specification.

My invention relates to Vaporizers for use in connection with internal-combustion engines.

In the operation of internal-combustion engines it is desirable when the engine is first started and is still cold that the air should be very highly carbureted, and when the engine has gained headway and the cylinder and piston have become hot the gas should contain a smaller proportion of hydrocarbonthat is, should not be so highly carbureted. It has beencustomary heretofore in many engines of this type to secure proper proportion of hydrocarbon in the gas and to maintain a mixture of the desired quality by regulating the feed of the liquid; but this method is unsat: isi'actory in that it is possible to secure the desired results only by experimenting and constantly altering the feed to correspond with the changing conditions.

It is the object of my invention to provide a vaporizer which will enable me to secure the desired quality of gas and to maintain a proper mixture under all conditions of the weather without changing or regulating the gasolene-feed.

To this end my invention consists of the construction herein described, and more particularly pointed out in the claims.

Referring to the drawings, Figure 1 is a front elevation of my vaporizer. Fig. 2 is a vertical section, and Fig. 3 is a horizontal section, of the same, showing the upper valveopenings out of alinement.

The main casing of my vaporizer consists of a simple casting comprising three chambers, of which the larger and central chamber A is themixing-chamber proper. On the left of the mixing-chamber A is the air-mixing chamber B, and on the right of the chamber A is the gasolene-feed-regulating chamber C,

tance above the lowest level of the chamber.

Through the apex of this conical bottom or feed-nozzle is a small opening at, connecting the interior of the mixing-chamber with the passage E, which in turn connects, by means of the passage F, with the feed-regulating chamber C. Extending through the passage E and into the opening (Z is a stem or valve (0. This valve differs from the ordinary needlevalve in that it consists of a wire stem of uniform diameter secured at one end to the screw 6 and maintains a uniform flow of liquid through the passage (Z.

The upper edge of the mixing-chamberA has formed thereon an inwardly-extending flange e. Secured to this flange is the regulating-chamber G, which is connected to the engine by the passage 9 and contains suitable means for regulating the flow of gas to the engine. Extending downwardly from this regulating-chamber is the cylindrical portion K, which. extends into the mixing-chamber A and surrounds the conical nozzle 1 Formed in the periphery of this cylindrical portion are two series of openings l: and la, one series of openings being formed near the top of the cylinder and the other series of openings, 7/, being near the lower edge of the same. The corresponding openings of the two series are preferably arranged one above the other. Within the cylinder and between the upper and lower openings 7:; and is is an inwardlyextending annular projection 7'2", which may be cast integral with the cylinder. T/Vithin the chamber A and fitting closely around the cylindrical part K is the rotary member L, having a lever 11/ for rotating it. This lever extends through a recess a in the upper edge of the chamber A. The rotating member L is provided with two series of openings Z and Z, formed in the same horizontal planes as the openings A: and k in the member K, but arranged in a staggered relation one to the other,

so that the openings Z and k of the upper series and Z and it" of the lower series cannot register at one and the same time. The lower edge of the member L rests upon the bottom of the mixing-chamber, while the upper edge is thickened, and this thickened portion has bearing on the inner surface of the flange thereby forming an annular passage 0 between the outer wall of the chamber A and the member L of a width corresponding to the width of the flange e and the thickened portion of member L. The regulating-chamber G preferably has formed thereon an outwardly-extending flange m for securing said chamber to the mixing-chamber. A scale N is placed on that portion of the flange m immediately above the recess a and lever a. A pointer n, secured to the lever a, moves on the scale N to indicate the position of the valve. A set-screw P, passing through the side of the chamber A, secures the valve in its adjusted position.

The air-mixing chamber B, as here shown, is directly connected with the annular passage 0, surrounding the valve in the mixing-chamber, and is connected at h with a pipe leading to the air-heating chamber surrounding the exhaust-pipe, and the lower side of the chamber is open to the atmosphere, the opening being regulated by the slide-valve b.

IVhen the engine is to be started, the operation is as follows: The feed-regulating valve (0, having been once set, requires no adjustment. The lever n is pushed over to the extreme left, or until the pointer is on l of the scale, in which position the lower openings of the valve members register, the openings being beneath the level of the inlet-opening of" the liquid-feed noozle (Z. The air enters the same and being deflected inwardly by the projection k passes up and around the nozzle and draws the gasolene around the valve (4 and through openingd in a fine spray, which mixes with the air to form a highly-carbureted gas, such as is desirable to start the engine. As soon as the engine gains headway and begins to warm up the lever a is shifted to the right. When the lever reaches the extreme right, or number 6 on the scale, the lower series of openings are closed and the upper series open, allowing the air to enter above the level of the inlet-nozzle, thus producing less suction on the nozzle and drawing less gasolene into the mixing-chamber, and therefore producing a lighter gas, such as it is desirable to run the engine on.

By means of the warm and cold air feed it is possible to deliver to the mixing-chamber an air that is constant in quality and quantity, thereby enabling me to use a gasolene-valve that requires no changing, such as is shown at a in the drawings. This valve not only produces a uniform flow of gasolene and requires no adjustment after it is once set, but

also serves to clear the passage of any sediment which may collect thereon.

lVhile I have described my invention in its preferred form, I would have it understood that the construction may be varied in many details without departing from the spirit of my invention.

WVhat I claim is 1. In a vaporizer for internal-combustion engines, the combination with the mixingchamber and the liquid-feed regulator, of an inlet-nozzle in said mixing-chamber, radiallyarranged air-inlets in said mixing-chamber above and below said nozzle, means for opening and closing said air-inlets and a deflector between said upper and lower inlets, substantially as described.

2. In a vaporizer for internal-combustion engines, the combination with the mixingchamber, and a feed-nozzle therein of a spraying-rod normally located within the dischargeopening of said nozzle, said rod being of less diameter than said opening and uniform throughout its length, substantially as described.

3. In a vaporizer for internal-combustion engines, the combination with the mixingchamber and a feed-nozzle therein, of a cylindrical casing within said chamber and surrounding said nozzle, radially-arranged openings in said casing above and below said nozzle, a valve for regulating said openings and means for operating said valve, substantially as described.

4:. In a vaporizer for internal-combustion engines, the combination with a mixing-chamber and a feed-nozzle therein, of a cylindrical casing within said chamber and surrounding said nozzle, an annular passage surrounding said casing, radially-arranged openings connccting said chamber with said passage above and below. said nozzle, a valve for regulating said openings and means for operating said valve, substantially as described.

5. In a vaporizer for internal-combustion engines, the combination with an outer casing, a feed-nozzle therein, an air-inlet into said casing, an inner casing and radially-arranged openings in said inner casing, of a sliding member between said inner and outer casings, adapted to open and close said openings, substantially as described.

6. In a vaporizer for internal combustion engines, a mixing-chamber comprising an outer casing having an air-inlet, an inner casing, a feed-nozzle, two series of radially-arranged openings above and below said nozzle, a sliding member located between said inner and outer casings and adapted to open and close said openings alternately and means for operating said sliding member, substantially as described.

7. In a mixing-chamber for internal-combustion engines, the combination with an outer casing having an air-inlet and a feed-nozzle therein of a cylindrical inner casing surrounding said feed-nozzle, openings in the circumferential wall of said inner casing above and below said nozzle, a sliding member surrounding said inner casing, openings in the vertical wall thereof adapted to open and close the upper and lower openings in said inner casing alternately, and means for operating said sliding member, substantially as described.

8. In a mixing-chamber for internal-combustion engines, the combination with an outer casing having an air-inlet and a feed-nozzle therein, of a cylindrical inner casing surrounding said feed-nozzle, radially-arranged openings in the circumferential wall of said inner casing above and below said nozzle, an apertured sliding member surrounding said inner casing, adapted to open and close the upper and lower openings in said inner casing alternately, means for operating said sliding member and. an air-passage surrounding the same,

substantially as described.

9. In a mixing-chamber for internal-combustion engines, the combination with the outer casing, an air-inlet therein, a feed-nozzle within said casing, a cylindrical inner casing, a series of radially-arranged openings in said inner casing below the outlet of nozzle and a second series oi radially-arranged openings in said inner casing above the outlet of said nozzle, of a sleeve surrounding said in ner casing, openings in said sleeve adapted to register with the openings in the said inner casing, and said openings being so arranged that when the upper series is open the lower series is closed, and vice versa, substantially ing, in said conical bottom and a sliding member surrounding said inner casing and adapted to open and close said openings alternately, substantially as described.

11. In a mixing-chamber for internal-combustionengines, the combination with an outer casing, an air-inlet into the same and a feednozzle therein, of an inner casing surrounding said nozzle, radially-arranged openings in said inner casing above and below said nozzle, an annular projection on said inner casing between said upper and lower openings and means for opening and closing said openings, substantially as described.

12. In a mixing-chamber for internal-combustion engines, the combination with an outer casing, an air-inlet in said casing, a feed-nozzle therein, an inner casing surrounding said nozzle and radially-arranged openings in the vertical wall of said inner casing above. and below said nozzle, of an annular passage surrounding said inner casing and connecting the openings therein with the air-inlet of said outer casing, and means for controlling the admission of air to said openings, substantially as described.

13. In a mixing-chamber for internal-combustion engines, the combination with an outer casing having a circumferential slot, an airinlet and a feed-nozzle therein, of an inner casing having openings therein, a sliding member adapted to open and close said openings, a lever secured to said sliding member and extending through the slot in said outer casing and means for securing said sliding member in its adjusted position, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

ELDEN PEARL LAMB.

Witnesses:

(J. H. EMERY, JOHN BIRD. 

